无线窨井系统网络拓扑结构和模块的设计

Design of the Network Topology and Modules Based on the Wireless Network System for the Manhole

介绍了无线系统传输的网络结构,设计了一种无线模块结构。设计中采用以下几种无线传输：频率为433 MHz的无线传输、Zigbee网络技术以及GPRS网络技术,然后对上述三种无线模块进行相关的电路设计。

This paper introduces the network structure of wireless transmission system. A wireless module structure is designed. In the design,several forms of wireless transmission frequency are adopted,which includes 433 MHz wireless transmission; Zigbee network technology and GPRS network technology. Then the above three kinds of wireless module circuit are designed.